The shared cookie can last as long as you want it to last, or as short as you want.

julian, Did I understand you correctly, that I can send cookie from my IdP and this cookie, if it has encoded inside email and id of the user from nodebb database, will be matched by session plugin, therefore the user will be signed in?

Also, could you please clarify, there is no mechanism to refresh this cookie? As I know it is considered a best practice to have access token (short life-span) and refresh token (long life-span)

Rp1 the SSO plugin does not save a cookie. A login (either via local username/password or via SSO) will generate a cookie, but this isn't the cookie used by session-sharing.

I go into more detail in the session-sharing readme: https://github.com/julianlam/nodebb-plugin-session-sharing/

julian, thanks, I've read it before. But my IdP(identity provider) can send cookies as response and this cookies can be shared through domain, therefore user will be signed in on my forum.

Also, could you please clarify, there is no mechanism to refresh this cookie? As I know it is considered a best practice to have access token (short life-span) and refresh token (long life-span)

Rp1 that's a use case I am unfamiliar with. Unfortunately at this time I don't think session sharing plugin is able to utilise that cookie.

It's an interesting idea though! It'd basically replace the need for the session sharing plugin!

julian, so there is no way to refresh token?

Rp1 a OAuth2 refresh token is used to trade in for a new short-lived access token (which I'm sure you knew already ), but there's no need for that for how NodeBB uses SSO. It calls the authorization endpoint a single time to log the user in, and essentially disposes of the access token after calling the user info endpoint.

Additional logins just restart the same login process. There's no need to maintain API access, which is why there's no need for a refresh token. Does that help?

thanks for clarifying, now I understnad fully how it sso works. However, I still don't understand how it works in case of sharing some token with session-sharing. If I this token ends, how can I refresh it using nodebb (In case, for instance, react app, I can create an axios interceptor which will go to required endpoint and if there is 401 it will go to the refresh endpoint and after to the required one) ? Or nodeBB is required just to see it once and it will be signed in until new one appearance or logout?

forgot to tag, sorry julian

Rp1 if the session sharing token ends they would just log in again using the SSO handler. There is no refresh token support in the session sharing plugin at this time.